WiZclick modes can be edited from the settings of each light, or group of lights.
Every light/group features its own WiZclick modes 1 and 2.
Those can be either light modes, custom colors or custom white temperatures. When supported, you can additionally select a brightness and speed level for each mode.
By default, if you never modify the WiZclick settings of a light, it will use the room favorite modes 1 and 2 as WiZclick modes, and follow the changes you may make to those room favorites (which can be edited at the room level).